Average annual temperature is 12.5 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -15.7 °C
Number of sunny days: 102 days
Number of rainy days: 230 days
Number of snow days: 33 days
Look at detailed online map of Heiwadai
* Weather data for Heiwadai Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.2 | 12.6 | 20.0 | 22.3 | 30.2 | 30.0 | 33.7 | 33.7 | 32.4 | 23.8 | 22.1 | 14.8 |
| Average daytime temperature (°C) | 3.3 | 3.9 | 12.9 | 16.3 | 20.3 | 24.4 | 28.6 | 32.0 | 27.3 | 18.9 | 12.8 | 6.3 |
| Average temperature (°C) | -0.3 | -0.6 | 6.2 | 10.3 | 14.5 | 19.8 | 24.1 | 27.3 | 22.7 | 13.3 | 8.4 | 2.8 |
| Average night temperature (°C) | -3.8 | -5.8 | 0.5 | 4.8 | 9.1 | 15.9 | 20.0 | 24.0 | 19.2 | 8.7 | 4.8 | -0.5 |
| Absolute minimum temperature (°C) | -12.5 | -15.7 | -6.1 | -1.7 | 0.2 | 9.2 | 15.8 | 20.3 | 10.3 | 2.6 | -2.5 | -4.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.0 | 6.8 | 8.8 | 8.8 | 8.8 | 8.3 | 9.6 | 11.4 | 7.3 | 8.3 | 5.7 | 4.6 |
| Precipitation (mm) | 54 | 59 | 84 | 127 | 143 | 165 | 158 | 88 | 142 | 70 | 145 | 113 |
| Sunny days | 3 | 4 | 20 | 13 | 13 | 5 | 9 | 4 | 3 | 13 | 9 | 6 |
| Rainy days | 14 | 11 | 11 | 17 | 18 | 25 | 22 | 27 | 27 | 18 | 21 | 19 |
| Snow days | 14 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
The best time to visit Heiwadai during the most sunny months:
The largest precipitation sum in Heiwadai is at